iOS26 Safari rendering bug even on latest beta 3

I am testing stuff on a website, and it worked well on any mobile browser till iOS18.

Now that I am testing iOS26, even with the latest BETA (3) everything works smoothly on any other mobile browser but Safari.

Previously I had the bug, which now has been patched, for status-bar, which was flickering too, but popover and page issue seems still there.

I have persistent popover and ajax navigation, and both are rendering with bugs and fouc while view/page changes.

Example: If I have an element which must stay on its place and its width is 100vw: while page changes it blinks, shrinks, flicker and jumps on rendering, while it simply must stay as is..

Animations and page transitions work smoothly on Chrome mobile (latest iOS 26 beta 3) , while breaking on Safari.

I did open a feedback FB18328720, but seems no one caring.

Any idea guys?

** Video of the bug (which is huge!) : ** https://youtube.com/shorts/rY3oxUwDd7w?feature=share

Cheers

iOS26 Safari rendering bug even on latest beta 3
 
 
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